The calculated distance (air line) between Krasnoobsk and Novosibirsk is approximately 9 miles respectively 14 kilometers.
By car or train, the actual journey to Novosibirsk is certainly longer, as only the direct route (as the crow flies) between Krasnoobsk and Novosibirsk has been calculated here.
Air line (approximately)
14 kilometers
8 nautical miles